As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LE SLAT DISAGREE BETWEEN UP AND 1 AT 225 KTS/3000 FEET. RAN QRH AND LANDED FLAPS 20 PER QRH. EMERGENCY DECLARED. LUBED LEFT AND RIGHT WING LEADING EDGE SLATS REF. B757 AMM 12-21-08-3. CHECKED BITE ON FSEU'S WITH NO FAULTS NOTED. RAN SLATS NUMEROUS TIMES WITH NO FAULTS.